Motor vehicle heater



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Oct. 6, 1931. E. RYDER 1,825,824

JTQR VEHICLE HEATER Filed April 22. 1929 2 Sheets-Sheet 1 JEZZw Oct. 6, 1931. E. RYDER MOTOR VEHICLE HEATER 2 Sheets-Sheet Filed April 22. 1929 & QR

QM QN w mm m\ g SQ \//(IIIIIIIIIIIIIIIIIIIIII/YIIIII(IIIIIIIIM @W 87 m n Patented Oct. 6, 1931 ELMER RYDER, or

PATENT OFFICE mom, ILLmo Is.

MOTOR VEHICLE HEATER Application filed April 22,

This invention relates to improvements in motor vehicle heaters, and more particularly to heaters of the face draft type.

One object ofv my invention is to locate the heating element and the motor driven blower therefor in a perforated casing and 2 thus provide all of the parts in a single unit which may be easily. shipped, handled andinstalled in any make of motor car.

Another object of my invention is to provide the blower with double air intake so as to increase the capacity of the'blower and keep the blower to the small size required for heater purposes,

Another object of my invention is to locate the blower and the heating element in longitudinal alignment within the casing and to provide the latter with an air duct from the blower to the heating element so. that the blower may blow air over the heating element for heating of the air thereby before being discharged from the casing.

A further object of my invention is to provide a gate valve so that the heating element may be cut off from the blower and the latter used. to blow and circulate cool air within the car body as may be required in warm weather. v

A further object of my invention is to provide the heating element inthe form of a hot water radiator and to provide an imeller which is driven by the motor of the Blower to circulate the hot water through the radiator and not depend on the circulation in the engine jacket with which the radiator is connected.

A further object of my invention is to so make the heater assembly or unit that it may be fastened to the floor of the car in any one of two positions so as'to either direct the air circulation upwardly or horizontally along Y the floor of the car,

The invention consists furtherin the matters hereinafter described and claimed.

In the accompanying drawings Figure 1 is a plan view showing my improved heater installed in place in the body of a car;

Fig. 2 is a longitudinal sectional viewthrough the car and showing the heater in the view through the heater assembly, with parts of an automobile, and 2, 3 indicate the front circulation of warme 1929. Serial No. 357,236.

mannerin' which the heater receives thehot water supply from the water cooling system of the eng ne;

Fig.3 is an enlarged longitudinal sectional in elevation;

Figs. 4, 5 and Gare transverse sectional views taken on lines 4-4, 5-5 and 66 of Fig. 3; and V Figs. 7 and 8 are end views of the heater 6O assembly illustrating the manner in which the heater may set on the floor to discharge heated air either upwardly or longitudinally. In Figs. 1 and 2, 1 indicates the closed body and rear seats, respectively, within the body as in motor car design. 4 indicates the engine of the vehicle at the front of the car, and 5 indicates the radiator which is used with the water, cooling system of the engine. 6 indicates the outlet nifold of the water cooling system on topof the-engine block, said manlfold being connected to the top of the radiator 5 as usual in assemblies of this kind. A hose 6 connects the lower end of the radiator 5 with the lower part of the cylinder jacket through a water circulating pump 7, when a force feed water circulating system is employed.

' The heater assembly. or unit of my inven- 'tion is in elon ated form and is designed to extend across t e floor 8 of the car in advance of the front seat 2, as shown in full lines in Figs.'1 and 2, or it may beinstalled between the front and rear seats, preferably at the rear of the front seat as indicated by dotted lines a in said figures. The heater is so made that it takes its air supply from within the body of the car,heats the air within the heater assembly through the medium of a heating element and byablower blows the heated air atconsiderable velocity back into the body of the car, thereby heating the interior of the car bod and'also creating a air therethrough;

Theheater assembly, as shown in Figs. 3 to 5, comprises an elongated sheet metal outer casing 9, preferably in the-form of an inverted U and having perforated fiat top and side walls 10, 11, respectively. The open side 10.

the plates 19, 19.

of the U is closed by a sheet metal pan 12 which fits within the casing 9 and forms the bottom wall thereof. The pan 12 is secured within the side walls 11, 11 by a row of screws 13 disposed near the bottom of the pan and engagm in conical projections 14, 14 struck inward as shown in Figs. 4 to 6. The projections 14 are located in the same horizontal plane and serve to support a flat partition plate 16 which forms a false bottom for the casing 9. The plate 16 fits within the casing 9 and divides the same horizontally into upper and lower compartments, the latter serving as an air duct from the blower 17 to the heating element 18 now to be described. End plates 19, 19 close the opposite ends of the casing 9 and the pan 12, as shown.

The blower 17 and the heating element 18 are located within the upper compartment of the casing and are supported therein in longitudinal alignment on the partition plate 16. The blower 17 comprises a housing madeup of side lates 19", 19 and an interposed casing 20, t 1e latter being somewhat circular in shape and opening into a discharge opening 21 in the portion of the plate 16 beneath the housing. (See Fi 6.) The side plates 19*, each have an inta e opening 22,-for the fan blades 23 locatedin the casin and mounted on a shaft 24 which extends t .rough the intake openings in the side plates 19 and is coupled at one end to the armature shaft of an electric motor 25, also located in the casing 9 and serving to rotate the blower. The motor 25 is furnished with the current required to run it from the battery of the car and a suitable switch (not shown) is provided for turning on and off the motor.

The motor 25 is fastened by screws or bolts to a plate 26 which fits within the upper compartment of the casing 9 on the outer side of the blower. Plate 26 is fastened to plates 19, 19" by long bolts or screws 27, 27 which extend through all of the plates and when tightened clamp the blower casing 20 between Spacers 28 are on the bolts between plate 26 and the next adjacent blower plate 19.

The heating element 18, as shown in the drawings, is in the form of a radiator having end headers 29, 29' and-an interposed core structure, which may comprise a series of fin provided tubes 30, 30. The radiator fills the portion of the casing 9 occupied thereby and has sufiicient heat radiating surface to adequately heat the air blown thereover by the Y blower 17. The radiator receives its hot water supply from the water jacket of the engine 4. This is accomplished byconnecting the headers by pipes 31, 32 with the manifold 6 and outlet pipe connection 6*, respectively, as shown in ig. 2. The radiator 18 takes in its hot water supply from the engine jacket through header 29. there being a water impelom the side walls 15, 15 of the pan, 7

ler 33 in the connection of pipe 31 with said header. The impeller 33, as shown in Fig. 3, is in the form of a rotary cone having a peripheral spiral passage through which the incoming water is forced on rotating the imeller by the motor 25. This is accomplished y having the shaft 34 of the impeller connected with the shaft 24 of the blower. The impeller causes a circulation of hot water from the engine jacket without depending on the pump 7 of the engine or on the thermo siphon circulation in the engine jacket when a circulating system of that character is employed.

The portion of the plate 16 beneath the radiator 18 is provided with perforations 35, 35, through which air from the blower may be blown over the radiator. To create the draft desired, the side walls 15, 15 of the pan 12 at the radiator 18 are continued up to the top wall 10 of the casing 9 so as to close the openings in the side walls 11, and thus cause all of the air blown over the radiator 18 to be dischar ed out of the perforations in the top wall 0% the casing 9; The side walls 15, 15 of the pan at the blower 17 and motor 25 terminate at the plate 16, and thus leave open the perforations in the side walls 11, 11 of the casing 9 so that the air supply for the blower may be drawn into the casing through all of the perforations in its top and side walls.

When the heater casing 9 is placed in the car with its wall 11 uppermost as shown in Figs 1, to 7, the heated air for the heater is forcibly blown in an upward direction. When the casing is placed with its top wall 10 Vertical and facing away from the seat next to which the casing is mounted, the heated air is blown from the casing 9 in a horizontal direction along the floor ofthe car. Some car owners may prefer this arrangement to the other in order to direct the heated air along the floor of the car and thus have that region the warmest.

The casing 9 is screwed to the floor 8 of the car through the use of angle strips 36, 36 at the opposite ends of the casing 9. These strips are fastened to the floor by screws 37, 37 and to the end plates 19, 19 of the casing by screws or bolts 38, 38. The end plates have openings to receive these screws and also have an additional opening a (Fig. 7) at one corner so that the casing may be fastened in either of the two positions mentioned. (See Figs. 7 and 8.)

With the blower 17, motor 25 and heating element 18, all located and secured in the easing 9, the heater assembly is complete in itself and provides a compact unit which may be readily and easily ship handled and installed 1n a car of any ma e and in any position desired. The blower 17 furnishes a forced draft for the heating element 18 and having a double intake will supply a large Lan satl xi 1 volume of air with a very small blower as must be used in small assemblies of this kind.

- With the blower, heated air. isdischarged of warm air therethrou h. Taking the air supply for the heater rom within the car body utilizes warm air and as a consequence the radiator 18 can heat up this air quicker than if cold air were taken from the outside of the car or from under the hood.

Located in the pan 12 belowthe discharge opening of the blower 17 is aswingable valve gate 39 whereby air from the blower ma be directed toward either end of the pan.

hen the valve 39 is in the position shown in full lines in Fig. 3, the air is directed from the blower to the radiator or heating element 18. The valve is provided with a stem 39% which extends across the pan and has its ends journaled in the side walls 15 of the pan and in the side walls 11 of the casing 9 as shown in Fig. 6. The opposite ends of the stem terminate substantially flush with the respective side walls of the casing 9 so that the stem does not project b yond the casing to interfere with placing dhe casing on the floor in the position to discharge heated air horizontally therefrom as shown in Fig. 8. To swing the valve, I provide on the exterior of the casing. Said handle is connected'with the end of the stem by a screw 39 as shown in Fig. 6. The engaging por-' tions' of the stem and the handle maybe serrated or botched so that the handle can not be turned without turning the stem. In Fig.

the casing 9. When the casing is in the position as shown in Fig. 8, the handle 39 is then fastened to the other end of the stem as shown in Fig. 8. If desired the handle 39 may be a secured to the rear end of the stem when the casing is inthe position shown in Fig. 6. The

casing is usually set outwardly far enough from the seat 2 of the car to permit access to be had to handle for swinging the valve member 39. When the valve member is swung into dotted line position shown in Fig. 3, the radiator or heating element 18 1s then closed off from the blower and the air from the blower is directed into the portion of the pan 1'2 beneath the motor 25. Here the partition wall 16 has openings 40 so that this air may be discharged from the end of the casing 9 contained inthe motor. This permits the blowerto discharge cool air and may be used in warm weather for cooling purposes. The

valve member 39 fits sufliciently tight between the side walls or flanges 15, 15 of the'pan to offer the resistance necessary to prevent accidental swinging of the valve. out of any position in which it may be set. Consequently the valve may be set to control the desired amount ing portion throng a suitable handle means 39"- of air to-the heating element 18 by setting the valve in the desired position between its terminal positions as shown in full and dotted lines, respectively, in Fig. 3. When so set a rtion of the air from the blower passes through the heating element and the remainthe-opposite end of the casing, thereby cutting down the amount of airsup lied to the heating element and consequen y lessenin the amount of heated air dischar ed from the heater.

Shou d the heated air discharged fromthe heater be more than desired, the motor 25 can be turned off and with the gate in the full line osition shown in Fig. 3, the draft induced y the heat radiated from the radiator will provide .a slight flow of heated air into the car. To shut ofithe radiator, I provide a valve 41 in the pipe 31, preferably where it connects with the manifold 6. I also provide an air valve 42 in the header 29 to relieve it of trapped air on starting the system.

Thedetails of structure and arrangement of parts shown' may be variously changed and modified without departing from the spirit and scope of my invention.

I claim as my invention: 1

1'. A motor vehicle heater comprising an elongated erforated casing, a partition wall v air duct from the blower to the element. 6 the handle 39 is shown on the front side of 2. A motor vehicle heater, comprising an elongated casing having top, bottom and side walls, the bottom wall being in the form of a pan secured to said side walls, a partition Wall supported in said pan and extending lengthwise thereof, and a heating element and a motor driven blower therefor located within the casing above said partition wall the latter being perforated at the blower an the heating element, respectively, andforming with the pan an air duct from the blower to the element.

3. A motor vehicle heater, comprising an elongated casing, a heating element in the form of a hot water radiator and a motor driven blower therefor located in the casing, means providing an air duct from the blower to the radiator, said casing being perforated at the blower and radiator, respectively, and

means at the radiator for circulating water therethrough, said means being actuated by the motor of the blower. v

4. A motor vehicle heater, comprising an elongated casing, a heating element in the form of a hot water-radiator and a motor driven blower therefor located in the casing, means providing an air duct from the blower 4 mama to the radiator, said casing being perforated through saidduct, said casing being perforat the blower and radiator, respectively, said rated at the blower and the radiator, respecradiator having inlet and outlets for contively.

In testimony whereof I afiixm si ature. 7

nectipn with a source of hot water supply, and

an impeller in the inlet connection and driven by the motor of the blower for circulating water through the radiator,

5. A motor vehicle heater, comprising an elongated casing having top, bottom and 1710 side walls, a heating element and a motor driven blower therefor located within the casing, means providing an air duct from the :blower to the element, the top and'side Walls ofthe casing being perforated, and means closing the perforations in the portions of the side walls extending along the heating element. v 6. A motor vehicle heater, comprising an elongatedcasing having top, bottom and in side walls, a partition wall in the casing adjacent its bottom wall and forming therewith an. air duct extending substantially the full length of the casing, a heating element and a motor driven blower therefor, located within the casing-above said partition wall in longitudinal alignment, said partition wall beng perforated beneath the blower, motor and heating element, respectively, and valve means for the air duct whereby the air from the blower may be directed toward either end of'said duct.

7. A motor vehicle, a heater located within the body of the vehicle on the floor thereof,

said heater comprising a casing and a heating element and a motor driven blower therefor located within the casing, said casing having an outlet/for the discharge of heated air therefrom, and means whereby the easing may be secured toithe floor of the vehicle for discharging heated air either above the floor or along the same.

8. A motor vehicle heater, comprising an elongated casing, a heating elementya motor driven blower therefor located within the casing-in longitudinal alignment, and means providing a single air duct from the blower to the element whereby the entire output of the blower will be caused to travel through the duct from the blower to the element, said casing being perforated at the blower and heating element, respectively, to provide for the discharge of air at the element and the intake of air at'the blower, said blower having side walls with an air intake opening in each to provide a double air intake for the blower.

9. A motor vehicle heater, comprising an elongated casing, a heating element in the form of a hot water radiator and a-motor providing a single air duct from the blower to the radiator, whereby the entire output of the-blower will be delivered to the radiator till 

